Finding the Fourth Proportional to 1,694,772,521.99, 2,542,111,789.85 and 451,213,654.79
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Solution
The fourth proportional to 1,694,772,521.99, 2,542,111,789.85 and 451,213,654.79 is: 676,807,970.80
Step by Step Solution
- Step 1: Write the proportion equation
1,694,772,521.99 : 2,542,111,789.85 = 451,213,654.79 : x - Step 2: Convert to fraction form
1,694,772,521.99/2,542,111,789.85 = 451,213,654.79/x - Step 3: Cross multiply
1,694,772,521.99x = 2,542,111,789.85 × 451,213,654.79 - Step 4: Simplify right side
1,694,772,521.99x = 1,147,035,551,568,000,256 - Step 5: Solve for x
x = 1,147,035,551,568,000,256/1,694,772,521.99 - Step 6: Final answer
x = 676,807,970.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.